STOP LIGHT CONTROL RELAY(for RHD) ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT STOP LIGHT CONTROL ECU ASSEMBLY


    1. Disconnect the stop light control relay assembly connector.

    2. A01WRPSE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Stop Light Control Relay Assembly)

      Measure the resistance and voltage on the wire harness side connector according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      A58-8 (GND) - Body ground Always Below 1 Ω
      Standard Voltage
      Tester Connection Condition Specified Condition
      A58-6 (+B) - Body ground Always 11 to 14 V
      A58-4 (ESS1) - Body ground Engine switch on
      A58-9 (ACC) - Body ground

      If the result is not as specified, repair or replace the wire harness or connector.

    3. Reconnect the stop light control relay assembly connector.

    4. A01WRJSE01
      Text in Illustration
      *a

      Component with harness connected

      (Stop Light Control ECU Assembly)

      Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      A58-1 (OUT) - A58-8 (GND) Brake pedal released Below 1 V
      Brake pedal depressed 7.5 to 14 V
      A58-5 (STP) - A58-8 (GND) Brake pedal released Below 1 V
      Brake pedal depressed 11 to 14 V

      If the result is not as specified, replace the stop light control ECU assembly.